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Control of a novel PV tracking system considering the shadow influence
Mi-Geum Jang,Jung-Sik Choi,Jae-Sub Ko,Ju-Hui Mun,Dong-Hwa Chung 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
In this paper a novel tracking system is described, regarding the influence of shadow between arrays, aimed at improving the efficiency of PV tracking system. Comparing with a building site versus capacity power, domestic solar powers have a limited setting. Therefore, each array interferes with the shadow of other arrays. The loss by influence of those shadows can be compensated for by means of control algorithm of the tracking device. The paper suggests a method controlling an altitude for length which is received the shadow influence of PV array. By using an azimuth of current solar position and the length between arrays, the controller of tracking device is able to calculate the length between actual arrays and make a comparison of the shadow length at a specific time with the length between arrays. When the shadow length is longer than the length between arrays, the controller of tracking device can adjust a position by compensating error altitude of the length between arrays at an altitude of current solar position. In the paper, we develop the control algorithm able to minimize the loss caused by the influence of shadow on the PV tracking system, and compared this with conventional output system. The controller has been tested in the laboratory with proposed algorithm and shows excellent performance.
장미금(Mi-Geum Jang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),백정우(Jeong-Woo Baek),문주희(Ju-Hui Mun),김순영(Sun-Yung Kim),정동화(Dong-Hwa Chung) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
This paper proposed design and development the maximum power point tracking(MPPT) control of a photo voltaic (PV) array for interior permanent magnet synchronous motor(IPMSM)drive. Conventional MPPT controller was unstable by reason of the ripple-current of DC link in three phase inverter. Thus in this paper the control algorithm of IPMSM using i<SUB>q</SUB> current is composed to improve the insecurity of conventional MPPT controller. Proposed algorithm is operated by simulation with variation radiation condition. And analyze the response characteristic of IPMSM. The validity of this paper is proved by analyzed data.
센서방식 및 프로그램 방식에 의한 태양광 발전 추적시스템의 비교 연구
장미금(Mi-Geum Jang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),백정우(Jung-Woo Back),강성준(Sung-Jun Kang),정동화(Dong-Hwa Chung) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.4
This paper proposes analysis data of generation efficiency with tracking method for solar tracking. Tracking algorithm of PV generation is divided the sensor method and program method. Generation efficiency is analyzed the three cases 1-high insolation, 2-low insolation, 3-rapidly changing insolation. Proposed data is possible to apply for development of novel algorithm with hybrid tracking method in this paper. Hereby, This paper is proved the benefit of analyzed data.
태양광 발전을 이용한 IPMSM 드라이브의 MPPT 제어
장미금(Mi-Geum Jang),최정식(Jung-Sik Choi),고재섭(Jae-Sub Ko),강성준(Sung-Jun Kang),백정우(Jeong-Woo Baek),문주희(Ju-Hui Mun),김순영(Sun-Young Kim),정동화(Dong-Hwa Chung) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.9월
This paper proposed design and development the maximum power point tracking(MPPT) control of a photo voltaic (PV) array for interior permanent magnet synchronous motor(IPMSM)drive. Conventional MPPT controller was unstable by reason of the ripple-current of DC link in three phase inverter. Thus in this paper the control algorithm of IPMSM using i<SUB>q</SUB> current is composed to improve the insecurity of conventional MPPT controller. Proposed algorithm is operated by simulation with variation radiation condition. And analyze the response characteristic of IPMSM The validity of this paper is proved by analyzed data.
환경변화에 강인한 태양광 발전의 MPPT 제어 알고리즘 개발
장미금(Mi-Geum Jang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),강성준(Sung-Jun Kang),백정우(Jeong-Woo Baek),문주희(Ju-Hui Mun),정동화(Dong-Hwa Chung) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.7
This paper proposes maximum power point tracking(MPPT) control algorithm of PV system using a novel method. The proposed hybrid method is composed perturb and observe (PO) method and constant voltage(CV) method. PO method is simple to realize and CV method is possible to tracking MPP with low insolation. Response characteristics of proposed algorithm is compared to conventional PO method with insolation variation. This paper proves the validity of proposed algorithm through the analysis result.
센서방식 PV 추적 시스템을 위한 개선된 제어 알고리즘 개발
장미금(Mi-Geum Jang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),정병진(Byung-Jin Jung),백정우(Jung-Woo Baek),정동화(Dong-Hwa Chung) 전력전자학회 2009 전력전자학술대회 논문집 Vol.2009 No.1
This paper proposes an improved tracking algorithm for photovoltaic(PV) system using sensor method. PV system of sensor method is exactly impossible to track a sun position when insolation is low or rapidly changed by the clouds and fogs. Also, in this case, tracking device is occurred energy consumption by unnecessary operating. This statement of reason, real power of PV system is not increased than fixed PV system in specified location. Therefore, this paper proposes improved tracking algorithm considered insolation for efficiency improvement of PV system using sensor method. And this paper analyzes the generation volume and proves the validity of proposed algorithm as compared with the conventional PV tracking system using sensor method.